Web-Based Digital Twin
Networking between digital twins , which can have different relationships to each other , also plays a key role . Fig . 6 shows some possibilities for the networking . First , the digital twins are arranged in their environments or contexts . In the hierarchical structure of context 1 , a digital twin connects across the boundaries of the context by means of an internal network to several digital twins of a second context . The fully networked digital twins of the second context are partially connected to the Web and can interact with a third context with its own structure . This flexible networking is fundamental for a digital twin and can be implemented in the web-based digital twin by means of the web technologies .
PROTOTYPE OF A WEB-BASED DIGITAL TWIN
We implemented a prototype to validate the concept . For the technical implementation , we used the Python programming language and numerous libraries .
Fig . 7 : Structure of the webbased digital twin .
The web server as the core of a web-based digital twin was developed using the open-source fullstack framework Django . The individual functional areas of the web-based digital twin are implemented as apps in Django and thus enable the modularization of the digital twin . Fig . 7 shows the structure of the web-based digital twin . In addition to the public pages Login and Registration , six additional pages are added for the digital twin . The Data page enables access to asset data coming from multiple origins like databases and cloud services . The CAD view contains 3D models of the asset . Live View displays the current state of the asset . The Simulation tab provides access to simulations , their execution and their results . The Settings view provides the preferences of the web-based digital twin .
Fig . 8 : Exemplary operation history of the laser plotter using ApexCharts library ( https :// apexcharts . com /).
IIC Journal of Innovation - 11 -